Prem Sundar A
Hyderabad
Summary
An Enthusiastic, responsible, resourceful professional working with Industrial Knowledge of SoC Architecture, SoC Power Concepts and Circuit,SubSytem & SoC level Power Validation. Actively working on top-notch next generation SoCs in Wearable and IoT segments. Desire to enrich new skills and technical wisdom.
Overview
6
6
years of professional experience
1
1
Certification
Work History
SoC Power Validation Engineer- Wearables & IoT
Client - Qualcomm,Hyderabad. Pay Roll - Wipro Technologies
08.2021 - Current
- SoC Power Validation - Developed power test plans, Power Testcases for various Wi-fi & Bluetooth scenarios, and performed power measurements intensively for Qualcomm Wearables and IoT segments.
- Power Breakdown Debug & Analysis - Responsible for analyzing power breakdown(rollup) sheets. Analyzed Sub-system wise, Rail-wise power consumptions and debugged several Soc level, System level and Circuit level power issues.
- Soc Architecture Concepts - Having a good understanding of concepts like PMIC, Power Gating, Clock Gating, Voltage/Frequency Scaling, SoC Resource scheduling, Vote/Bandwidth aggregation, Network-On-Chip(NOC), Different Voltage Corners, LDOs, SMPS, Buck-Booster, Island Power Save, etc.
- Power Competitive Analysis - Actively Performed, Analyzed, Compared, reviewed power consumption of various BT & WLAN scenarios of several Top Tier Wearables like Apple Watch Series(Ultra, watch 9,watch 8,watch 7), Samsung Watch Series(Active 4, Active 5, Active 6). Suggested and implemented better takeaways from competitor power analysis.
- Customer Issues - Worked on several interesting customer issues, like random voltage droop, Indefinite APC wakeup due to Thermal configs etc. Worked with Google, Meta, Oneplus, Oppo and Other OEMs Power team.
- Power Save Innovations & Demos - Submitted many power save innovation ideas to corresponding forums and presented demos.
- Optimization and DoU Improvements - Suggested various power optimizations to Chipset Power team in Application processor, Co-Processor, DDR, WLAN, and BT subsystem levels. Suggested optimizations in Bluetooth SCO, A2DP, and RFCOMM scenarios.
- Test Bed Bring up & Tool - Actively Involved in bringing up a lot of Power Testbeds. Worked on Rock Bottom Solid Current bring-ups and debugs. Having Hands-on Rail-Wise Power Measurement Tool.
- Cross-Functional Issues - Collaborated with different stakeholders of Audio, Platform, Thermal, Modem, Sensor, and Location teams for many cross-functional analyses and debugs.
- Platforms - Worked on Google WearOS, Android WatchOS, and Non-HL OS platforms.
SQA Engineer - (WLAN, Power Consumption)
Client - Broadcom Inc,Bengaluru. Pay Roll - IDC Technologies
05.2019 - 08.2021
- Involved in Validating and assuring quality for 802.11 wireless LAN products(Test Plan creation, Test bed design and Implementation).
- Power Validation - Developed power test plans and power test cases for different Wi-Fi scenarios and executed them for all Top-Tier Chipsets.(BCM4387,BCM4378, BCM4357,4355C3 for the Apple and MaC Products)
- Power Testbed bring up & Tool - Having hands-on experience in creating a power consumption measurement testbed and actively worked on the Monsoon Power Tool. Debugged, analyzed different current consumption scenarios, and worked with chipset power team on power issues.
- WLAN Power Management - Handled Wi-Fi power management features like Power Save Bandwidth, One Core listen, Beacon Trimming, RSSI scenarios, etc.
Education
Bachelor of Engineering - Electronics & Communication(CGPA - 8/10)
Einstein College of Engineering
Tirunelveli, TamilNadu04-2019
High School (Percentage - 80%) -
Schaffter Hr.Sec.School
Tirunelveli, Tamil Nadu04-2015
SSLC (Percentage - 96%) -
Schaffter Hr.Sec.School
Tirunelveli, TamilNadu04-2013
Skills
- SoC Architecture
- SoC Power Validation - WLAN & Bluetooth Subsystems and Full SoC
- Clock Gating,Power Gating, Voltage/Frequency Scaling Concepts
- SoC Power Management and Delivery
- Understanding of SoC Resource Scheduling, Vote/Bandwidth Aggregation, Network-On-Chip(NOC) concepts
- WLAN & Bluetooth Concepts
- PMIC Systems - LDO, Buck-Booster Concepts
- Hands-on various power measurement tools (National Instruments system-level power tool, Monsoon Power Monitor), JTAG, power probing, etc
- Hands-On Basic Wifi and Bluetooth Sniffers
Certification
- Professional Development Certification : Embedded Systems Crash Course(3 Months)
Patents and Innovations
- Filed 1 Patent "AUDIO PLAYBACK IN THE PRESENCE OF MULTIPLE DEVICES" - US Patent Counsel - Serial.no: 18/956,758
- Filing in Progress - Power Save Mechanism in 802.15.4 - Final Legal Documentation is in progress
- Submitted 12 Innovation Ideas(IoT/WLAN/Power technology/Bluetooth/Automotive areas) in last 2 years.
Power Optimization Solutions:
- Proposed DDR(RAM) Bandwidth reduction with profiled data for Bluetooth HFP-Call scenario
- Proposed and worked on WLAN and Bluetooth Co-ex transition management for improved power consumption
- Proposed Bluetooth and WLAN alignment process for reduced power consumption
- Proposed Dynamic CPU voltage Corner change mechanism for Voice Scenarios
Awards and Appreciations
- Got Appreciated for most number of Innovation Ideas submitted in Q4, 2024
- Got appreciated for Real Time Demo of Low power RTOS wearables scenario
Languages
Tamil
First Language
English
Advanced (C1)
C1
Hindi
Intermediate (B1)
B1
Timeline
SoC Power Validation Engineer- Wearables & IoT
Client - Qualcomm,Hyderabad. Pay Roll - Wipro Technologies
08.2021 - Current
SQA Engineer - (WLAN, Power Consumption)
Client - Broadcom Inc,Bengaluru. Pay Roll - IDC Technologies
05.2019 - 08.2021
Bachelor of Engineering - Electronics & Communication(CGPA - 8/10)
Einstein College of Engineering
High School (Percentage - 80%) -
Schaffter Hr.Sec.School
SSLC (Percentage - 96%) -
Schaffter Hr.Sec.School
- Professional Development Certification : Embedded Systems Crash Course(3 Months)
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